# 400A AC/DC Watt Clamp-on

## Overview
· Measures Watts, Current, and Voltage
· AC/DC True Power measurements up to 240kW

## Features
· True RMS AC Voltage and Current
· Jaw opening: 0.9" (23mm)
· LCD Display: 4000 count
· Analog Bargraph: 40-segment
· Functions: Data Hold, Max/Min recall, Auto Zero (DC current), Low battery indication
· Frequency Range: Up to 10kHz
· Auto power off
· Includes: Test leads, 2 AA batteries, and carrying case

## Ordering Information
· 380940: 400A AC/DC Watt Clamp-on
· 380940-NIST: 380940 with Calibration Traceable to NIST

## Specifications
AC Power
· Range: 40kW - 240kW
· Resolution: 10W - 100W
· Accuracy: ±(1.5% + 3d) @ 50/60Hz
· Input Signal Range: 0-250V/0-400A, PF 0-1 (40kW) & 0-600V/0-400A, PF 0-1 (240kW)

DC Power
· Range: 40kW - 240kW
· Accuracy: ±(1.5% + 3d)

AC Current
· Range: 400A
· Resolution: 0.1A
· Accuracy: ±(1.5% + 3d) @ 50/60Hz
· Overload Protection: 600A AC
· Frequency Range: 40Hz-1kHz

DC Current
· Range: 400A
· Resolution: 0.1A
· Accuracy: ±(1.5% + 3d)
· Overload Protection: 600A DC

AC Voltage
· Range: 600V
· Resolution: 1V
· Accuracy: ±(1.5% + 2d) @ 50/60Hz
· Overload Protection: 800V AC

DC Voltage
· Range: 400V
· Resolution: 0.1V
· Accuracy: ±(1.0% + 2d)
· Overload Protection: 800V DC

Frequency
· Range: 0.01-10kHz
· Resolution: 0.01Hz
· Accuracy: ±(0.8% + 2d)
· Overload Protection: 600V AC

## Physical Characteristics
· Dimensions: 7.2 x 2.5 x 1.4" (183 x 64 x 36mm)
· Weight: 6.7oz (190g including batteries)